355 F355 / 355F1 Parts Thread

No problem. After 18 years of having my exhaust value wired open everything is now working. For those with a rattling bypass valve I found that putting a small tension spring on the actuator arm pulling at a right angle away from the valves up/down travel really helps. Make sure you have a steady vacuum out of the bean tin. I had to replace both of the small check valves and the. I’d get a steady 10-15 in hg on startup and 55 in hg after a quick run

 

Hope it's a genuine Ford part. I see Ali Express is selling some for less than U$10